EP 0757952 B1 20000315 - Front derailleur for a bicycle
Title (en)
Front derailleur for a bicycle
Title (de)
Vorderer Umwerfer für ein Fahrrad
Title (fr)
Dérailleur avant pour une bicyclette
Publication
Application
Priority
JP 22111495 A 19950807
Abstract (en)
[origin: EP0757952A1] A bicycle front derailleur includes a frame bracket (2) for fixing the derailleur to a bicycle frame, a cage plate (36) for guiding a chain (51) among a plurality of chainwheels (52, 53, 54), and a radial adjustment mechanism (7, 8, 11, 12) for adjusting a position of the cage plate substantially radially relative to the chainwheels. In a more specific embodiment, a derailleur bracket (6) fixes the cage plate (36) to the frame bracket (2), wherein the derailleur bracket defines a derailleur bracket opening (7). A bushing (8) is disposed in the derailleur bracket opening. The bushing (8) defines a bushing opening (9) such that the bushing has an eccentric shape relative to the bushing opening. A fastener extends through the bushing opening for fastening the bushing to the frame bracket. Thus, rotation of the bushing varies the position of the derailleur bracket and hence the position of the cage plate relative to the chainwheels. <IMAGE>
IPC 1-7
IPC 8 full level
B62M 9/1244 (2010.01); B62M 9/126 (2010.01); B62M 9/131 (2010.01); B62M 9/1342 (2010.01); B62M 9/1344 (2010.01); B62M 9/135 (2010.01)
CPC (source: EP US)
B62M 9/1344 (2013.01 - EP US); B62M 9/135 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 0757952 A1 19970212; EP 0757952 B1 20000315; CN 1069275 C 20010808; CN 1143033 A 19970219; DE 69607083 D1 20000420; DE 69607083 T2 20001221; JP 3328113 B2 20020924; JP H0948385 A 19970218; TW 305811 B 19970521; US 5846148 A 19981208
DOCDB simple family (application)
EP 96305786 A 19960806; CN 96109314 A 19960807; DE 69607083 T 19960806; JP 22111495 A 19950807; TW 84110597 A 19951009; US 91455097 A 19970819